This is very odd.. Unless there is some other sort of issue happening here.. My 8 veros on 2 hlg240-1750s hit 448w right away the first time, with no warm up time.. So 224w per driver..
Now your there bud.. Its still better than getting the 1400ma and only getting 200w.. I like the 1750 just to get that little extra.. Got pics of the fixture?